----- Original Message -----
> From: "mark" <m.roth@xxxxxxxxx>
> To: "CentOS mailing list" <centos@xxxxxxxxxx>
> Sent: Tuesday, October 16, 2018 2:36:38 PM
> Subject: Re: C 7 installation annoyances
> Gordon Messmer wrote:
>> On 10/16/18 1:24 PM, mark wrote:
>>
>>> Gordon Messmer wrote:
>>>
>>>> As best I recall, there's no support in the UI for LVM volumes with
>>>> RAID level. (And I don't see any such option in the kickstart
>>>> documentation, which also suggests that it won't be present in the
>>>> UI.)
>>>> The supported configuration is to create two partitions, create
>>>> a RAID1 volume from those, make that volume an LVM physical volume,
>>>> and then any logical volumes in that VG will be backed by a RAID1 set.
>>>>
>>> Which is *stupid*. Why would you not want the LVM on a single RAID1?
>>
>> I don't think I follow you. What I described creates a single RAID1
>> volume, and then creates logical volumes within it.
>
> I don't seem to see your how-to-do-it today. All I know is that the GUI
> partitioner lets me *either* to lvm, *or* RAID, which results in two RAID
> partitions (root and swap), not one LVM on top of a single RAID 1
> partition.
>
> mark
LVM on a Linux software RAID1 is still easy to create. Here is a link to a tutorial someone made with screenshots.
https://www.tuxfixer.com/centos-7-installation-with-lvm-raid-1-mirroring/
Although I don't use LVM much I do use Linux software RAID1 on all my production systems. I have a few dozen systems that use it under CentOS 6 and 7. It has always worked just fine and has saved me trouble from failing disks on quite a few occasions throughout the years.
David Miller.
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